When our body gets too hot, we begin to sweat.  When sweat evaporates, thermal energy is transferred to the air outside our body and our body temperature drops. What characteristic of life does this represent?

Why do bacteria thrive even in hostile environments

How does the nervous system affect the excretory system?

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.